careful of angles

Don't scratch yourself with a gun
or take no killed man's bible,
one's bad luck. And the other's
a cause to be careful of angles,
which no man has cause to be
unless he's stupid. The wide,
barren stretch of dusty time's
got cause in it to take cares
and pains enough, let alone
mathematics and such. Just
one last job,
now
then,
we begin again

to trust.